21248478

素因数分解:

$2^1\times 3^2\times {\mathrm{439}}^1\times {\mathrm{2689}}^1$

素因数の和:3136

約数の個数: 24

約数和(自身を含む): 46160400

約数和(自身を除く): 24911922

約数列:

[1, 2, 3, 6, 9, 18, 439, 878, 1317, 2634, 2689, 3951, 5378, 7902, 8067, 16134, 24201, 48402, 1180471, 2360942, 3541413, 7082826, 10624239, 21248478]

約数ペア:

[(1, 21248478), (2, 10624239), (3, 7082826), (6, 3541413), (9, 2360942), (18, 1180471), (439, 48402), (878, 24201), (1317, 16134), (2634, 8067), (2689, 7902), (3951, 5378)]